Title screen

[References: p. 528 (8 tit.)]

table ignition and sustention of a pulsed discharge with a current of up to 180 A and duration of 12 µs at a pressure of 10?1–10?2 Pa are achieved in a glow-discharge plasma cathode with the help of an auxiliary initiating discharge. An electron emission current density of up to 100 A/cm2 and accelerating voltageof 15 kV are obtained in a gas-filled diode based on this type of a plasma cathode. An electron beam witha neutralized space charge can be transported almost without losses in a weak axial magnetic field alonga plasma channel formed due to the gas ionization by the accelerated electrons over a distance of up to 30 cm.